I have incorrectly filed 1120 for my foreign-owned US single-member LLC. I wrote numbers in the wrong fields.
The company is not engaged in U.S. trade or business (USTOB) and has no effectively connected income (ECI) as I already learned before establishing the LLC I won't be taxed by IRS in this condition and I already paid my income tax in my home country.
I have received a CP132 notice from IRS saying: (We believe there's a miscalculation on your form 1120, which affects the following area of your return * tax computation. We changed your return to correct this error. As a result, you own $24,268.92)
Now, can I file a 2021 amended tax return to remove this amount, or what should be the proper action?
